Chapter 6: BIOS
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M.2-P_1 / M.2-H_2** PCIe Speed
Use this feature to select the PCI Express port speed. The options are
Auto
, Gen1,
Gen2, and Gen3.
Port 61h Bit-4 Emulation
Select Enabled to enable the emulation of Port 61h bit-4 toggling in System Management
Mode (SMM). The options are Disabled and
Enabled
.
PCIE PLL SSC
Use this feature to enable PCI-E phase-locked loop (PLL) spread spectrum clocking (SSC).
The options are
Enabled
and Disabled.
Super IO Configuration
The following Super IO information will display:
•
Super IO Chip AST2500
Serial Port 1 Configuration
This submenu allows the user to configure the settings of Serial Port 1.
Serial Port 1
Select Enabled to enable the selected onboard serial port. The options are Disabled and
Enabled
.
Device Settings
This item displays the status of a serial port specified by the user.
Change Settings
This feature specifies the base I/O port address and the Interrupt Request address of a
serial port specified by the user. Select
Auto to allow the BIOS to automatically assign the
base I/O and IRQ address.
The options for Serial Port 1 are
Auto
, (IO=3F8h; IRQ=4), (IO=2F8h; IRQ=4), (IO=3E8h;
IRQ=4), and (IO=2E8h; IRQ=4).
Serial Port 2 Configuration
This submenu allows the user to configure the settings of Serial Port 2.
Serial Port 2
Select Enabled to enable the selected onboard serial port. The options are Disabled and
Enabled
.
